This reverts commit 471fef04.

Reason for revert: A more general fix incoming at https://crrev.com/c/1273095.

Original change's description:
> [coverage] change block range to avoid ambiguity.
> 
> By moving the block range end to left of closing bracket,
> we can avoid ambiguity where an open-ended singleton range
> could be both interpreted as inside the parent range, or
> next to it.
> 
> R=​verwaest@chromium.org
> 
> Bug: v8:8237
> Change-Id: Ibc9412b31efe900b6d8bff0d8fa8c52ddfbf460a
> Reviewed-on: https://chromium-review.googlesource.com/1254127
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#56347}

TBR=yangguo@chromium.org,neis@chromium.org,verwaest@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:8237
Change-Id: I39310cf3c2f06a0d98ff314740aaeefbfffc0834
Reviewed-on: https://chromium-review.googlesource.com/c/1273096Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56513}